In order to discuss systematic position of genus Allium ,the author selects 23 classification characters on morphological,pollens and chemicalof genus Allium and its relative genera ( Lycoris,Anemarrhena and Lilium ),uses method of maximal same step length to get a cladogram.The cladogram shows genus Allium distinguishes with the other three genus.It is no reason to put it and any of the other three genera in the same family.So,it is necessary to creat a family Alliaceae and have genus ...